High-efficiency broadband blazed metagrating working in visible light
文献类型：期刊论文
| 作者 | Y. Lin; Y. Han; C. Wang; B. Li; J. Zhang and Y. Deng |
| 刊名 | Journal of Optics (United Kingdom)
 |
| 出版日期 | 2023 |
| 卷号 | 25期号:2 |
| ISSN号 | 20408978 |
| DOI | 10.1088/2040-8986/acac40 |
| 英文摘要 | A simple 1D blazed metagrating is proposed. The metagrating consists of SiO2 film sandwiched by Ag substrate and Ag nanostrips, which can achieve high-efficiency −1st-order diffraction in the range of 550 nm to 700 nm, and the peak efficiency is nearly 98%. The SiO2 dielectric layer in previous designs is used chiefly as a waveguide layer to support a guided mode. In comparison, it is introduced here to suppress the unwanted diffraction order (zero-order), which helps achieve high-efficiency diffraction at a high diffraction order. For analysis, the metagrating is disassembled into two parts, including a flat plate and a grating. By analysing the far-field radiation pattern of scattered waves and the reflection phase of a specific mode for these two parts, we conclude that the cause of high-efficiency blazing draws support from suppressing zero-order based on destructive interference. This work provides an intuitive physical image for this type of metagrating and an idea to design high-efficiency diffraction and beam deflection devices from the perspective of interference. © 2022 IOP Publishing Ltd |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/67680]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Y. Lin,Y. Han,C. Wang,et al. High-efficiency broadband blazed metagrating working in visible light[J]. Journal of Optics (United Kingdom),2023,25(2). |
| APA | Y. Lin,Y. Han,C. Wang,B. Li,&J. Zhang and Y. Deng.(2023).High-efficiency broadband blazed metagrating working in visible light.Journal of Optics (United Kingdom),25(2). |
| MLA | Y. Lin,et al."High-efficiency broadband blazed metagrating working in visible light".Journal of Optics (United Kingdom) 25.2(2023). |
入库方式： OAI收割
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。